Package



Sept, Z3, 194?. s. B. HOGDAI. 2,427,858

Patented Sept. 23, 1947 PACKAGE Stig Bertil Hogdal, Danderyd, near Stockholm, Sweden Application August 16, 1943, Serial No. 498,82 In Sweden `luly 29, 1940 i 6 Claims. l

` The present invention relates to packagesof the type including a box of cardboard or the like and a lining inserted therein.

An object of the invention is to provide a package of this type which is especially adapted for finely divided contents because it encloses the contents practically air-tightly and positively prevents even the most iinely divided contents from leaking out.

Another object of the invention is to provide a package of the said type which is easy to manufacture at reasonable cost.

Still another feature of the invention is to provide a package of said type which is easy to close tightly after filling.

In the accompanying drawings:

Figs. l3 illustrate an embodiment of the invention, and

Figs. 4-8 illustrate another embodiment thereof;

Fig. l. is a plan View of a blank for the package of the rst embodiment;

Fig. 2 is a perspective view of one end of this package in open state;

Fig. 3 is a perspective view of said end in a partially closed state.

Fig. 4 is a plan view of the blank for a package of the second embodiment;

Fig, 5 is a perspective view of one end of this package in open state;

Fig. 6 is a perspective view of same end subsequent to the first closing stage;

Fig. '7 is a top plan view of the same end at this rst closing stage;

Fig. 8 is a perspective view of the prior to the final closing stage.

With reference to Fig. 1, the ful1 heavy lines represent the outline of the blank of the cardboard box whereas the dash-dot heavy lines indicate the outline of the lining. The full thin same end Z 3 at their base lines 2. The narrower end panels 6 are each formed with a diagonally extending folding indication 9 extending to the free corner or point as produced by the respective cut 8,

The outline lil of the lining is substantially rectangular and projects beyond the end 5 of the cardboard blank. Opposite each of the wider end panels 51 of the cardboard blank adapted to form separate flaps a portion of the lining is cut away down to the top I2 of a trapezium area the bottom of which is represented by the base line 2 of the iap 51 and the sides of which are the two inclined lines l l. Within said trapezium area the lining should, preferably, be pasted to the lines indicate folding indications formed in theI card board blank and the dash-dot thin lines indicate borders for sticking the lining on the cardboard blank. The cardboard blank is formed with longitudinally extending folding indications I and transversally extending folding indications 2 dividing the cardboard blank into two side panels 3, two narrower panels t, and two wider and two narrower end panels 51, 52 and 6, 6 respectively, at each end. In addition, the cardboard blank includes a pasting portion l. Those wider end panels which are indicated by the numerals 51 are separated from the adjacent narrower vend panels by cuts 8 so as to form separate flaps only connected with the respective wider main panels ap 51. The lining has no cuts corresponding to the cuts 6 of the cardboard blank, there being no incisions at all made in the outline of the lining except at i3, I2 as just described.

In forming a package of the composite blank shown in Fig. l the blank is first folded along the lines l and the portion l is pasted to the righthand panel 3. The result will be an open-ended tube of rectangular cross section, as shown in Fig. 2, with the lining I@ projecting beyond the edges of the end panels 51, 52, E, 6. 'In order to manually close said tube at each open end the two narrower end panels t are pressed inwards by the forengers, causing said panels to fold themselves double along the diagonal folding indications 9 and bring the wider panel -52 with them. By exerting a pressure with the thumbs on said wider end panel 52, the latter is pressed down so as to lie dat against the double folded panels 6, in a plane at right angles to the surfaces 3, 4 of the box. By the folding operation described, the lining IB, which is assumed to be pasted to the separate flap 51 along the trapezium area bounded by the lines 2, I2 and ll, I I, is double folded against the separate flap 51 with the portions I6, I5 bounded by the lines I3, I3 overlapping each other, as shown in Fig. 3. The portions of the lining Ill projecting above the upper edges of the end panels 6, 6 and 52 project after the folding operation described in doublefolded state between the upper, or free, edge of the end panel 52 and said overlapping portions, as shown in Fig. 3. It is seen from this figure that the mouth portion of the lining projecting beyond the upper, or free, edge of end panel 52, is tightly compressed between said free edge and the base line of the separate flap 51. By folding down the separate flap til it comes into contact with the end panel 52, the projecting mouth portion of the lining will be folded around the free edge of the end panel 1.52 and thus made quite Powder-tight, and may then be sealed in this state by pasting the separate nap '51 tc the end panel i. g

In folding the end panels of the package above described it may happen, if the folding is carelessly made, that the mouth portion of the lining does not exactly partake in the folding of the end panels of the cardboard box but wrinkles, thereby jeopardizing the sealing effect desired, This risk may be overcome by modifying the cardboard blank so as t allow it to more positively guide the lining during the folding operation, as will hereinafter be described with reference to Figs. 4-8 of the drawings. As far as possible the same reference numerals and the same manner of illustration are used in these figures as in the Figures 1-3 already described.

Thus, in Fig. 4, the outline of the cardboard of box blank is indicated by thick full lines and the outline of the lining blank by thin dash-dot lines. The cardboard blank is provided with four parallel longitudinal folding indications I and two transverse folding indications 2 near either end. 'I'hese folding indications divide the blank into a set of panels or fields, viz. two wider side panels 3, two narrower side panels 4. an additional side portion 1 for pasting purposes, and corresponding end panels.

The end panel corresponding to one wider side section 3 is designated by 52 and has no folding indications. The narrower end panels designated -by the reference numeral 6. are provided with diagonal folding indications 9 as in the embodiment above described. The remaining end panels, belonging to the other side panel 3, are each formed with a transverse cut, indicated by the thick dotted line I6, and two longitudinal cuts 8, extending from the base lines 2 of the adjacent narrower end panels 6 to the ends of the cut I6. Thus, each of these end panels is divided into an inner separate ap l coherent with the respective side panel 3 and an outer ribbonlike portion Il forming a sort of bridge between the adjacent end panels 6. Said ribbon like portion I I is formed with two longitudinally extending folding indications I8 lying at a distance from the respective folding indications I equal to a fourth of the length of the ribbon-like portion I 1. In addition, said portion I1 is formed with oblique folding indications I9 situated like reflections of the diagonal folding indications 9 of the adjacent, end panels 6. Regard to the thickness of the cardboard or other material used for the box blank necessitates, in practice, certain corrections of the placing of the various folding indications, as illustrated in respect to the folding indications 2 in Fig. 1.

The lining I0 which projects beyond the end portions of the cardboard blank should, preferably, be pasted to the end panels 52, 6 and I1 but not to the separate flaps 51. A transverse pasting strip, however, may be provided on the respective side panel 3 at a small distance from the base lines of the separate flaps, as indicated at 20.

In order to form a package of the composite blank shown inFig. 4, the blank is first folded along the indications I and pasted along the portion 'I so asto form an open-ended tube of rectangular cross section, as shown in Fig. 5. To close the open end shown in this figure, the tube is grasped with both hands with the separate flap facing the operator. With the foreflngers the two narrow end portions 'I are pressed inwards, and at the same time the middle fingers are pressed against the "rear" end section 52. At the starting of these manipulations it is preferred to exert a weak pressure on the ribbon-like member I'I in order to cause it to yield inwards. 'Ihe end sections t when thus pressed inwards are folded along the diagonal indications 9 and the member I'I when yielding inwards is folded along the indications I8 and I 9, as will appear from Figs. 6 and 1. After the said folding operations have been coin pleted and the rear" end panel l has been pressed down as far as possible, so that its free edge is situated right opposite the base line of the separate flap 51. the ribbon-like member I'I will lie doubled between said "rear end panel 5v and the double-folded end panels 6. The 1ining pasted to the cardboard blank members I, 6 and I1 has been positively caused to exactly partake in the folding movements of said members of the cardboard blank. As a result, the mouth portion of the lining projecting between the free edge of end panel 52 and the base line of the separate flap 51 will present a smooth and tight folding in convolutions as shown in Fig. 8. Since the ribbon-like member I1 has a height midway between its ends which is equal to half the height of the undivided end panel. the portion of the lining corresponding to this end panel will be folded around the middle of the ribbon-like member and will thus be held even, and positively prevented from bending or being torn in two. In this position the mouth portion of the lining projecting between the free edge of the end panels 52, 6 and I1, bears in its folded state against the separate flap 51 which remains in its original position (Fig. 8). As said ap is folded down t0- wards the previously folded down end panel 5. it will fold said portion around the free edge of the end panel 52, thereby powder-tightly closing the lining. By pasting the folded down flap to the end panel 52 the package is sealed in closed position.

What I claim is:

1. A package for the purpose set forth, comprising a box of stiff material and an unslitted lining inserted therein, said box having side panels and, at least at one end, a set of top panels foldably connected with the respective side panels of the box for closing the package, one of said top panels being a separate closing flap. while the remaining top panels are joined with adjacent top panels at the corners of the box, two of said top panels having fold lines extending diagonally from their free top corners to their bottom corner which is connected With an adjacent top panel, the lining being longer than the box so as to project beyond the upper edges of the top panels, so that upon folding down the said coherent top panels to close the respective end of the package the projecting mouth portion of the lining extends in the folded down state of said coherent end panels up between the base of the separate flap and the upper edge of the opposite one of the coherent end panels and may be folded around said upper edge and jammed between the separate nap and said opposite end panel by folding the separate flap down against said opposite end panel and be sealed in said position by pasting, the lining being pasted to the box adjacent the base of the separate ilap to retain the lining in position especially during the folding operations.

2. A package as claimed in claim l, in which the separate flap comprises a whole end panel of the box.

3. A package aS claimed in claim 1, in which 4the separate iiap comprises a portion only of an dication between the end panel and the respective side of the box, a part of the lining in contact with said flap being cut away down to the top of said trapezium area.

5. A package for the purpose set forth, comprising a box of stii material and an unslitted lining inserted therein, said box having side panels and, at least at one end, a set of top panels foldably connected With'the respective side panels of the box for closing the package, one of said top panels being a separate closing flap, while the remaining top panels are joined with adjacent top panels at the corners of the box, two of said top panels having fold lines extending diagonally from their free top corners to their bottom corner which is connected with an adjacent top panel, one of the end panels of the box consisting at one end of an inner member forming a separate ap directly connected to the respective side of the box along a folding indication but free at its outer edges, and an outer member forming a ribbon-like bridge between the adjacent end panel so that the end panels will be together all around at their upper edges, the 1ining being longer than the box so as to project beyond the upper edges of the top panels, so

.that upon folding down the said coherent top panels to close the respective end of the package the projecting mouth portion of the lining extends in the folded down state of said coherent end panel up between the base of the separate flap and the upper edge of the opposite one of the coherent end panels and may be folded around said upper edge and jammed between the separate flap and said opposite end panel by folding the separate flap down against said opposite end panel and be sealed in said position :by pasting, the lining being pasted to the box adjacent the base of the separate ap to retain the lining in position especially during thefolding operations.

6. A package for the purpose set forth, comprising a box of stii material and an unslittedi 6 lining inserted therein, said box having side panels and, at least at one end, a set of top panels foldably connected with the respective side panels of the box for closing the package, one of said top panels being a separate closing flap, while the remaining top panels are joined with adjacent top panels at the corners of the box. two of said top panels having fold lines extending diagonally from their free top corners to their bottom corner which is connected with an adjacent top panel, the separate end closing flap comprising a portion only of an end panel, the remaining portion of the end panel forming a ribbon-like bridge between two adjacent end panels having diagonal folding indications, said ribbon-like portion being provided with folding indications for enabling an automatic double folding thereof when the said adjacent end panels are folded along their diagonal folding indications, the lining being longer than the box so as to project beyond the upper edges of the top panels, so that upon folding down the said coherent top panels to close the respective end of the package the projecting mouth portion of the lining extends in the folded down state of said coherent end panels up between the base of the separate nap and the upper edge of the opposite one of the coherent end panels and may be folded around said upper edge and jammed between the separate ap and said opposite end panel by folding the separate flap down against said opposite end panel and be sealed in said position by pasting, the lining being pasted to the box adjacent the base of the separate flap to retain the lining in position especially during the folding operations.

STIG BERTIL HOGDAL.

REFERENCES CITED The following references are of record in the lfile of this patent:

UNJQTED STATES PATENTS Number Name Date 2,089,483 Jaenicke Aug. 10, 1937 2,292,653 Palmer Aug. 11, 1942 1,907,067 Hartmann May 2, 1933 1,517,964 Drysdale Dec. 2, 1924 1,956,159 Reilley et al. Apr. 24, 1934 201,707 Schermerhorn Mar. 26, 1878 

